Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 18:25Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
d/dz [z^11] = 11z^10
320K
det| 9 9 ; 5 10 | = 45
144K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
det| 7 2 ; 7 8 | = 42
438K
2r² + 6r + 5 = 0
det| 7 7 ; 4 8 | = 28
94K
∑_{k=1}^{n} k = n(n+1)/2
390K